A class 11 student was arrested tonight for threatening Rajasthan Chief Minister Ashok Gehlot, police said here. The teenager Sunil Bairwa reportedly telephoned the police control room threatening the police saying " Mukhya Mantri Ko Bacha Sakate Ho to Bachalo (Save the Chief Minister if you can save).The police soon swung into the action to trace the call made from a mobile telephone. Later, the call was traced and the teenager was nabbed from Shivdaspura-Kanota area, police said adding that the boy was being interrogated.